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Enviro -Chem , Inc . <br /> 1214 E . Lexington Avenue , Pomona , CA 91766 Tel ( 909) 590 -5905 Fax ( 909 )590-5907 <br /> 8260B QA/QC Report <br /> Date Analyzed . 11120 -21 /2019 Matrix : Waterli iauid <br /> Machine : B Unit : u IL PPB <br /> Matrix Spike ( MS)/Matrix Spike Duplicate ( MSD ) <br /> Spiked Sample Lab I . D . : 19111940 MS/MSD <br /> Analyte S , R . s k conc MS % RC_ MSD % RC % RPD JACP % RC ACP RPD <br /> Benzene 0 25 . 0 21 . 1 84 % F 23 . 0_ 92 % 8 % 75 - 125 0-20 <br /> Chlorobenzene 0 25 . 0 22 . 8 91 % 25 . 0 100 % 9 % 75- 125 0-20 <br /> 1 , 1 - Dichloroethene 0 25 . 0 20 . 4 82 % 21 . 2 85 % 3 % 75- 125 0-20 <br /> Toluene 0 25 . 0 23 . 1 92 % _25 . 1 100 % 8 % 75- 125 0-20 <br /> Trichloroethene ( TCE1 0~ 25 . 0 20 . $ 83 % 23 . 4 94 % 10 % 75 - 125 0-20 <br /> Lab_ Control Spike ( LCS) <br /> Analyte s k conc LCS % RC ACP % RC <br /> Benzene 25 . 0 22 . 0 88 % 75 - 125 <br /> Chlorobenzene 25 . 0 23 . 6 94 % 75 - 125 <br /> Chloroform 25 . 0 21 . 1 84 °% 75 - 125 <br /> 111 - Dichloroethene 25 . 0 1945 78 /0 75 - 125 r�,w <br /> Eth ( benzene 25 . 0 24 . 0 96 % 75 - 125 PTO <br /> o -X lene 25 . 0 1968 79 % 75 - 125 <br /> m , -X lene 50 . 0 48 , 9 98 % 75 - 125 IENV �R®N��� .� �,��N� <br /> Toluene 25 . 0 23 . 8 95 % 75 - 125 <br /> 1 , 1 , 1 -Trichloroethane 25 . 0 22 . 1 88 % 75- 125 <br /> Trichloroethene TCE 25 , 0 21 . 8 87 % 75 - 125 <br /> Surrogate Recovery I s k conc JACP % RCI MB %'RC I % RC I % RC I % RC % RC % RC % RC <br /> Sam le I . D . - M -1SLK 191119 "40119111941 ji91919-42 191119 -43 1J1119 -44 191119 45 <br /> Dibromofluoromethane 25 . 0 70 - 130 98% 90% 97 `ib 98 °f , 101 % 92 % 1 98 % <br /> Toluene-d8 25 , 0 70- 130 102 % 102 % 104 % 103 % 103 % 101 % 103% <br /> 4 - Bromofluorobenzene 250 70- 130 9411% 92 % 96"/0 83% 93 % 84 °x, 100 % <br /> Surrogate Recovery rspk conc JACP % RC °% RC I % RC % RC % RC % RC '% FSC /° RC <br /> Sample I . D . i § 1119.461191119 =47 191119 .48 191119 -49 1911 .19 - 50 181119 .51 191119 . 52 <br /> Dibromofluoromethane 25 . 0 70- 130 98 % 102 % 97 %, 102 % 100% 109 % 107 % <br /> Toluene-d8 25 . 0 70- 130 81 % 84 % 81 % 130 %. 81 % 103 % 105% <br /> 4 - 13romofluorobenzene 25 . 0 _ 70- 130 92 % F 92 % 93 % 91 % 94 % 88 % 91 % <br /> Surrogate Recoverys k conc ACP % RC % RC % RC % RC % RC % RC % RC % RL. <br /> Sample I . D . 191119=53 11191119 .54 191119 . 5a 191119.56 19111941 19112041 <br /> - - <br /> Dibromofluoromethane 250 70 -130 108% 107 % _ 980/o I 103 % 98 % 93 % <br /> Toluene-d8 25 . 0 70- 130 103 % 104 % 102 % 103 % 103 % 101 % _ <br /> 4- 13romofluorobenzene 25 , 0 70 - 130 92 % 93 °f° j 93% 90 °/n 101 % 9 i <br /> = Surrogate fail due to matrix interference; LCS, MS, MSD are in control therefore the analysis is in control. <br /> S. R. = Sample Results % RC = Percent Recovery <br /> spk conc = Spike Concentration ACP % RC = Accepted Percent Recovery <br /> MS = Matrix Spike MSD = Matrix Spike Duplicate <br /> Analyzed/Reviewed By : <br /> Final Reviewer: <br />